Apparatus for cutting sheet material with a cutting wheel
AssigneeGerber Garment Technology, Inc.
InventorsHeinz J. Gerber, David R. Pearl
Life of this patent
Estimating the term…
Abstract
An automatically controlled cutting machine for cutting sheet material employs a cutting wheel and a hard, smooth and continuous surface of ferromagnetic material on which the sheet material is spread for cutting. To prevent shifting during cutting, the material is releasably attached to the support surface by adhesives, freezing, electrostatics and other securing means. The cutting wheel is forced downwardly against the hard support surface by an electromagnet mounted on the cutting wheel support to insure severing of the sheet material.
Claims6
An automatically controlled cutting machine for cutting sheet material in limited plies and thicknesses comprising:
- a cutting table having a hard support surface on which sheet material is laid for cutting;
- a cutting wheel having a sharp peripheral cutting edge which rolls over the support surface of the table to cut the sheet material spread thereon;
- suspension means above the support surface of the table and supporting the cutting wheel for movement in rolling fashion along predetermined lines of cut through the sheet material on the support surface;
- drive means connected with the suspension means, the cutting wheel and the cutting table for controllably advancing the cutting wheel along lines of cut through the material on table;
- and
- controlled magnetic means associated with the wheel and the table for pulling the cutting edge of the wheel and the hard support surface toward one another at a high force level to cause the cutting edge of the wheel to sever the sheet material without reacting the high force level through the suspension means to the table.
Dependencies are inferred from the claim text.